数学季刊 ›› 2008, Vol. 23 ›› Issue (3): 390-396.
摘要: Formal concept analysis (FCA) is a discipline that studied the hierarchical struc-tures induced by a binary relation between a pair of sets, and applies in data analysis, infor-mation retrieval, knowledge discovery, etc. In this paper, it is shown that a formal context T is equivalent to a set-valued mapping S : G → P(M), and formal concepts could be defined in the set-valued mapping S. It is known that the topology and set-valued mapping are linked. Hence, the advantage of this paper is that the conclusion make us to construct formal concept lattice based on the topology.
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